Heater Blower HELP!
- Ian_Fearn
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Heater Blower HELP!
My heater blower is playing up.
On 'full' setting sometimes it works full blast but most of the time its hardly even blowing. Everynow and again you can hear it changing but generally goes back to being lame.
I've got a new blower unit but before I put it on is there some kind of resistor in this system??
Cheers, Ian
On 'full' setting sometimes it works full blast but most of the time its hardly even blowing. Everynow and again you can hear it changing but generally goes back to being lame.
I've got a new blower unit but before I put it on is there some kind of resistor in this system??
Cheers, Ian
Over and out from me
yes the heater fan resistor pack is in the rear face of the heater fan box, in the scuttle under the wind screen,
GSF used to sell them cant remember how much,
but here are the OE part No.'s
6445 84
CONTROL MODULE
- UNTIL RPO No. 03709
6445 90
- SINCE RPO No. 03710
it wont let me check price at the mow
regards malcolm
GSF used to sell them cant remember how much,
but here are the OE part No.'s
6445 84
CONTROL MODULE
- UNTIL RPO No. 03709
6445 90
- SINCE RPO No. 03710
it wont let me check price at the mow
regards malcolm
curent ride
K reg BX 17TD TZD est
also own
K reg D special
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H reg CX saffari 2.5 TRI (now gone to Malaysia)
R reg xantia 1.9TD est (gone to meet its maker)
K reg BX 17TD TZD est
also own
K reg D special
no longer have
H reg CX saffari 2.5 TRI (now gone to Malaysia)
R reg xantia 1.9TD est (gone to meet its maker)
- mat_fenwick
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- mat_fenwick
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Sorry about that, must be the Christmas spirit(s!) affecting my typing/thinking ability...mat_fenwick wrote:It's not actually a resistor pack, but contains a transistor to vary the voltage across the fan motor. To check if the existing motor is OK, you can unplug the two (thick) wire connector that comes out of the motor casing and connect it to a 12V supply. If it spins then the motor is obviously OK.
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- docchevron
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Ooh, I read something about this recently, only I can't remember where now!kiwi wrote:Just a quick slight off topic with this.
Would this also cause the fan to stay on? The TRS has its fan on permanatly low speed cant switch it off. Not much of a worry either been like it since I got it.
But someone else (could even have been on AF) had the same problem and was told by the garage that Oz spec cars always had the blowers running, there was no way to shut them off.
Which seems odd to me, and I've never heard of that before.
I think in that instance I'd be looking at the PCB in the fascia?
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Far too many BX's, a bus, an ambulance a few trucks, not enough time and never enough cash...
Far too many BX's, a bus, an ambulance a few trucks, not enough time and never enough cash...
Nothing would surprise me but the TZS does not have that issue. Good job to because when the Aircon is blowing even with the fan off it is still effectively cold.... cough need it today temperature reached 26cdocchevron wrote: was told by the garage that Oz spec cars always had the blowers running, there was no way to shut them off.
Which seems odd to me, and I've never heard of that before.
I think in that instance I'd be looking at the PCB in the fascia?
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I agree with that. In effect all you have done by turning the fan off is stopped the forced flow. The BX airvents are open still and an air flow is coming in through as a natural airflow.ken newbold wrote:This is true, but the fan does shut offDollywobbler wrote:Hold on - I though BX heater fans always ran, or is it just the case that all three BXs I've owned have a faulty blower control? Turn it all the way, and the system shuts off completely but even slightly turned, the fan blows slightly.
The TRS I have as sooon as you put the key in the ignition you can hear the fan on a low speed hence my question which I think Doc may well have answered.
Thankfully the famous blocked tap does not affect this car so I dont have a slightly more warmed airflow into the car duuring the summer months
- Jaba
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Re: Heater Blower HELP!
Sounds like the best thing to do is to put your other motor in.Ian_Fearn wrote:My heater blower is playing up.
Especially if your blower motor does not run at a steady speed at the intermediate settings.
That power regulator (resistor) does play up but usually it just packs up altogether. This can be due to a poor earth connection via a sort of retaining strap and some electrically conducting grease that is used that just dries up. Worth a look and clean up if the new motor still plays up.
The tracking of the speed control dial also plays up with age. Again this shows up mostly at the higher speed settings where it has to pass a bit more current - but I would try the motor first.
The Joy of BX with just one Citroën BX to my name now. Will I sing Bye Bye to my GTI or will it be Till death us do part.
One thing I noticed no one has mentioned is the spindle sticking.
Ian does your fan screech to a halt or screech at all? If so look at the spindle but your probably going to find any fix unless a complete overhaul is temporary so its really an easy job to just swamp the fans over, than fiddle around.
Ian does your fan screech to a halt or screech at all? If so look at the spindle but your probably going to find any fix unless a complete overhaul is temporary so its really an easy job to just swamp the fans over, than fiddle around.
- maxgreenwood
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my blower wasn't working but tested ok bridging the car battery into the socket on the motor, this is a simple test. i tried resoldering pcb board with no success. It was heavily corroded. got another one and has worked great since, the simple soldering modification posted on this forum for full fan speed is handy in winter as well.
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